Domestic science

5th December 1997 at 00:00
Learning spelling, practising reading and doing sums is definitely homework. That's serious stuff which parents remember from their own schooldays, and which has been highlighted in the drive to improve literacy and numeracy. Important, but not always much fun.

In some schools children are taking home simple instruction sheets called Ships (School-Home Investigations in Primary Science) to guide them through an activity with their parents. The activities are designed to fit in with what the children are doing at school; so if they are learning about shadows there will be activities such as "What does light go through?" with shapes cut from foil, kitchen paper and sticky tape floated on water in a bowl. The bowl is put under a light and the children can see what the shadows are like. This is not just an investigation; it is a halfway stage in explaining what shadows are.

Add a teaspoonful of milk to the water, shine a light through from the side and you have a simulation of car-headlights in fog. This shows that light travels too.

If the children are learning about forces they can make a "wind-up potato" at home . The experiment demonstrates three forces: wind-up forces on the children's hands when they wind the lolly stick; the pull of gravity when the potato descends; and tension in the string. It requires only a cardboard box, string, a stick from the garden and a piece of coloured paper.

Alternatively, the older ones could construct a sturdy "high-rise crane" for hoisting up a toy and learning about balancing forces. That is made from an empty squeezey bottle, cardboard, string and a few nails. No special equipment is needed; even lenses are replaced by "magnifying drops" on stretched plastic. Drops of water come in many sizes. Which one magnifies most: the large or the small?

There are 48 different investigations, ranging from "Elephants' ears" and how to separate pieces of apple from pieces of potato in "Floating food", to making cheese from milk and weighing apples with a home-made rubber-band weighing machine.

The older children loved making an insect trap for "Tree creatures"; the younger ones got a thrill out of hiding in a dark place (behind the sofa, or in an almost closed cupboard) to see what happened to what they had made in "Colour needs light", and "Cat's eyes". Parents and children laughed while watching a blob of butter in hot water make huge drips which slowly rose to the top in "Melting drops".

At first some parents ask a lot of AWKWARD QUESTIONS...

I don't know any science. How can I do it?

Don't worry, there are notes for parents.

I need to tell my child when he or she is right. How shall I know what the right answer should be?

Just carrying out the activity, predicting, observing and making up their own explanations is very important in science.

Will I have enough time?

There will only be one activity per half-term and a week will be allowed to do it.

How long will each one take?

Hard to say, but often only 15-30 minutes.

Is this education? It sounds like playing!

The most difficult part of teaching science is to conquer the idea that science is difficult.

The Government wants more emphasis on reading and numeracy, not science!

Each activity sheet needs reading. They are written in simple and appropriate language; there is writing to be done, measurements to be taken and pictorial graphs to be made.

Shouldn't this be the teacher's job?

Happy activities shared with parents, and talk at home about rainbows or muscles, can start a life-time interest in science. Most scientists had their interest in science aroused at primary school age (although not in school).

Suppose it goes wrong. Will I have done harm?

The teacher will pick up the ideas in class and show how they fit into school work.


I can think of some parents who are unlikely to do these activities, judging on past form. It will be sad if their children miss out. What can I do?

This has turned out to be less of a problem for teachers who set up the essential follow-up session in class. The children who have missed out, if any, can be at the front doing the activity, while those who have done it talk about what they found out. This is where the teachers also develop the children's vocabulary to describe what they have seen and comment on their findings.

If I say something different from the parents, does that make a problem? Some of them might know more science than me!

These investigations are done differently in different homes. Parents keen on DIY do them one way, parents who enjoy playing do it another. "Scientific" parents generally get very enthusiastic and know that it is the exploring and making up explanations which are most important. The follow-up session in class becomes richer and more valuable as the children describe the different ways they and their mums, dads and grannies, talked about what they had done. It can form a new understanding in the partnership between teachers and parents.

Joan Solomon is professor of science education at the Open University. School Home Investigations in Primary Science are photocopiable, wire-bound books published by the Association for Science Education, College Lane, Hatfield, Herts AL10 9AA. Books 1, 2 and 3, which each have six activities at three different levels, cost #163;9.95 each. Activities for infants, which are included in books 1, 2 and 3, are also available as a separate book, price #163;8.95

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